Percent of Sub arachnoid aneurysm that is missed on ct
15 percent.
Follow with lp
Posterior circulation and carotid ultra sound.
Never order carotids
Get CTA
Treat menengitis
Ct
Lp in 1 hr
Abx
Unless sick! Abx now
What happens if you get culture after abx
Culture is negative means you have to treat empirically
Treatment if bact. Menengitis
Rocephin 1 g Iv q12 bid
Ampicillin Iv 2 g q 6 qid
Vancomycin